Recently, Atsushi has been immersed in her house, Izumi. Iiyo floats and saves hotel charges. Above all, I can meet Izumi's mother, Haruka. The adult sex appeal that Haruka feels every time she visits the house. Atsushi was fascinated by the bewitching charm that Izumi didn't have. However, such days change greatly when Atsushi happens to witness Haruka's masturbation. The relationship between Atsushi, Izumi, and Haruka, the mother, develops into a strange love triangle in which the emotions and libido of the mother and daughter compete with each other.